Holder check and emergency lock for hinged doors and windows



March 4, 1924. 1,485,424

A. D. MUNSLOW AnTHuRDuvl' Mvnslow lNvENToR;

@my l Attorney:

Patented Mar. 4, 1924.

UNITED STATES l 1,485,424 PATENT OFFICE.

ARTHUR DavIEs MUNsLoW, or roTTs roiNT,Y NEAR SYDNEY, NEWsoUTH WALES,

AUSTRALIA.

VEOLDER CHECK AND EMERGENCY LOCK FOR HINGED DOORS AND WINDOWS. i

Application led September 13, 1922. Serial No. 587,891.

To all whom t muy concern.'

Be it known that I, ARTHUR Davies MUNsLoW, a subject of the King of Great Britain and Ireland, residing at 20 Manning Street, Potts Point, near Sydney, New South IValeS, Australia, have invented certain new and useful Improvements in Holder Checks and Emergency Locks for Hinged Doors and VindoWs, of which the following is a specification.

This invention relates to attachments for hinged doors and Windows, for holding the same in fully open or partly open position and preventing rocking or rattling'.

The device comprises a quadrant arm with a stub end for iiXing it to a door or sash on or near the hanging stile,` a bracket arm with a stub or lange for fixing it to the frame or architrave, a range of culpholes and a range of through holes in t e quadrant, and a spring pressed knuckle and a spragv pin carried on the end of said bracket and adapted to engage the quadrant cup-holes and through holes. The knuckle is housed in a cylinder on the bracket with an helical spring backing it and a screw down cap plate forming an abutmentfor the spring and providing a means for adjusting its tension. The knuckle bears frictionally on the quadrant and is engageable in the cup-holes therein, the spring being adjusted by means of the screw down cap to hold it sufiiciently tightly to prevent accidental movement of the door or Window sash by Wind or by vibration.

The spragl is inserted in one or other of the through holes in the quadrant to lock the quadrant to the frame bracket to fix the door or sash in any desired position at partial or Jfull opening. As the attachment is not accessible from outside the door or Window opening, the sprag attachment renders it eiicient for holding doors and Windows of ships cabins, vdressing rooms and other apartments partially open Vfor purposes of ventilation whilst reserving privacy.

The device is il ustrated in` the accompanying drawings,-

Fig. 1 being a top plan;

Fig. 2 an elevation, and

Fig. 3 a fragmentary vertical section.

The quadrant 10 is fixed to the door or Window 11 by a mounting stud i'iange 12. It is formed with a shallow groove 13 Yto forni a track for the knuckle, and at in-` 21 in which is an helical spring 22 Which` bears down on afoot disc 23 carrying a spherical knuckle 24 which protrudes through a hole in the pot bottom in register With the quadrant groove 13. The tension of the spring 22 is adjusted by means of a screw cap abutment 25. A Wind 26 on the end of the bracket 17 is pierced With a hole 27 to accommodate th-e sprag pin 16. Y

The door or Window is bolted7 in any required intermediateV position by inserting the sprag pin 16 through one of the holes 15 and through the hole 27. When the sprag is not set, the knuckle acting on the sector imposes frictional resistance to the movement of the door or Window according to the spring adjustment.

What I claim as my invention and desire to secure by Letters'Patent is 1. A door or sash holder, comprising a flat bracket detachably mountedon the door frame, a cylindrical casing mounted on the free end of the bracket, said casing being provided With a horizontally disposed slot, V'

a perforated false bottom in the casing and mounted above the slot, a ball project-ing through said perforated bottom, ya helical the spring pressed ball on the upper surface of said quadrant plate, said groove being provided With depressionsrat regular intervals along said groove. V

2. A door 0r sash yholder comprising a flat bracket mounted on the door frame, a

of the bracket, said casing being provided with a horizontally disposed slot in the cylindrical casing mounted on the free end bottom thereof,l a perforated false bottom mounted above the slot, a spring pressed ball projecting through the perforation in longitudinal 'groove havingdepressions the falsebottom, a chain suspended pin attherein, the plate having holes disposed in cached to the free end of the bracket, anda the outer margin thereof to receive said 10 Hat quadrant plate mounted on the door and chain suspended pin. n i

5 adapted to be inserted into and slid Within g In testimony whereof I affix my signature.

the slot in the biacket, said quadrant plate L being provided on its 'upper face with a ARTHUR DAIES MUNSLO'W. 

